Structuralization as characteristic to link the mechanical behaviours of asphalt concrete at different length scales

B. Shane Underwood, Y. Richard Kim

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Multiscale characterization and modelling is an increasingly popular technique for the investigation of asphalt concrete due to limitations with the level of insight possible from macroscale mechanistic models with respect to certain key performance characteristics. Four key questions arise in the multiscale experimental/mechanical evaluation of asphalt concrete; 1) what are the different characteristic length scales within asphalt concrete, 2) how should these materials be constructed in the laboratory for experimentation 3) what are the characteristic behaviours of these different scales, and 4) how are these behaviours linked across the scales. In this paper the authors present research findings concerning the fourth question. A characteristic index, the structuralization index, is identified as a scale independent characteristic that explains the stiffening characteristics of asphalt concrete across length scales. The definition and basis for the development of this structuralization index is presented. Next, the application of this structuralization index to two different materials is shown. It is the authors' belief that this structuralization index can serve as a means to link the characteristic behaviours of asphalt concrete for analytical upscaling of the modulus, and perhaps other properties as well.

Original languageEnglish (US)
Title of host publicationAsphalt Pavements - Proceedings of the International Conference on Asphalt Pavements, ISAP 2014
PublisherTaylor and Francis - Balkema
Pages953-962
Number of pages10
ISBN (Print)9781138027121
DOIs
StatePublished - 2014
Event12th International Conference on Asphalt Pavements, ISAP 2014 - Raleigh, NC, United States
Duration: Jun 1 2014Jun 5 2014

Publication series

NameAsphalt Pavements - Proceedings of the International Conference on Asphalt Pavements, ISAP 2014
Volume1

Other

Other12th International Conference on Asphalt Pavements, ISAP 2014
CountryUnited States
CityRaleigh, NC
Period6/1/146/5/14

Keywords

  • Asphalt
  • Mastic
  • Multiscale
  • Structuralization

ASJC Scopus subject areas

  • Building and Construction
  • Architecture

Cite this

Underwood, B. S., & Kim, Y. R. (2014). Structuralization as characteristic to link the mechanical behaviours of asphalt concrete at different length scales. In Asphalt Pavements - Proceedings of the International Conference on Asphalt Pavements, ISAP 2014 (pp. 953-962). (Asphalt Pavements - Proceedings of the International Conference on Asphalt Pavements, ISAP 2014; Vol. 1). Taylor and Francis - Balkema. https://doi.org/10.1201/b17219-117